src/test/test-sched-prio.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2012 Holger Hans Peter Freyther
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <sched.h>
  21
  22 #include "macro.h"
  23 #include "manager.h"
  24 #include "rm-rf.h"
  25 #include "test-helper.h"
  26 #include "tests.h"
  27
  28 int main(int argc, char *argv[]) {
  29         _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
  30         Manager *m = NULL;
  31         Unit *idle_ok, *idle_bad, *rr_ok, *rr_bad, *rr_sched;
  32         Service *ser;
  33         FILE *serial = NULL;
  34         FDSet *fdset = NULL;
  35         int r;
  36
  37         enter_cgroup_subroot();
  38
  39         /* prepare the test */
  40         assert_se(set_unit_path(get_testdata_dir("")) >= 0);
  41         assert_se(runtime_dir = setup_fake_runtime_dir());
  42         r = manager_new(UNIT_FILE_USER, true, &m);
  43         if (MANAGER_SKIP_TEST(r)) {
  44                 log_notice_errno(r, "Skipping test: manager_new: %m");
  45                 return EXIT_TEST_SKIP;
  46         }
  47         assert_se(r >= 0);
  48         assert_se(manager_startup(m, serial, fdset) >= 0);
  49
  50         /* load idle ok */
  51         assert_se(manager_load_unit(m, "sched_idle_ok.service", NULL, NULL, &idle_ok) >= 0);
  52         assert_se(idle_ok->load_state == UNIT_LOADED);
  53         ser = SERVICE(idle_ok);
  54         assert_se(ser->exec_context.cpu_sched_policy == SCHED_OTHER);
  55         assert_se(ser->exec_context.cpu_sched_priority == 0);
  56
  57         /*
  58          * load idle bad. This should print a warning but we have no way to look at it.
  59          */
  60         assert_se(manager_load_unit(m, "sched_idle_bad.service", NULL, NULL, &idle_bad) >= 0);
  61         assert_se(idle_bad->load_state == UNIT_LOADED);
  62         ser = SERVICE(idle_ok);
  63         assert_se(ser->exec_context.cpu_sched_policy == SCHED_OTHER);
  64         assert_se(ser->exec_context.cpu_sched_priority == 0);
  65
  66         /*
  67          * load rr ok.
  68          * Test that the default priority is moving from 0 to 1.
  69          */
  70         assert_se(manager_load_unit(m, "sched_rr_ok.service", NULL, NULL, &rr_ok) >= 0);
  71         assert_se(rr_ok->load_state == UNIT_LOADED);
  72         ser = SERVICE(rr_ok);
  73         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  74         assert_se(ser->exec_context.cpu_sched_priority == 1);
  75
  76         /*
  77          * load rr bad.
  78          * Test that the value of 0 and 100 is ignored.
  79          */
  80         assert_se(manager_load_unit(m, "sched_rr_bad.service", NULL, NULL, &rr_bad) >= 0);
  81         assert_se(rr_bad->load_state == UNIT_LOADED);
  82         ser = SERVICE(rr_bad);
  83         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  84         assert_se(ser->exec_context.cpu_sched_priority == 1);
  85
  86         /*
  87          * load rr change.
  88          * Test that anything between 1 and 99 can be set.
  89          */
  90         assert_se(manager_load_unit(m, "sched_rr_change.service", NULL, NULL, &rr_sched) >= 0);
  91         assert_se(rr_sched->load_state == UNIT_LOADED);
  92         ser = SERVICE(rr_sched);
  93         assert_se(ser->exec_context.cpu_sched_policy == SCHED_RR);
  94         assert_se(ser->exec_context.cpu_sched_priority == 99);
  95
  96         manager_free(m);
  97
  98         return EXIT_SUCCESS;
  99 }